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raise "Vendored ActiveRecord 5 code! Delete #{__FILE__}!" if ActiveRecord::VERSION::MAJOR >= 5
require 'active_record/connection_adapters/postgresql_adapter'
require 'active_record/connection_adapters/postgresql/schema_statements'
#
# Monkey-patch the refused Rails 4.2 patch at https://github.com/rails/rails/pull/31330
#
# Updates sequence logic to support PostgreSQL 10.
#
# rubocop:disable all
module ActiveRecord
module ConnectionAdapters
# We need #postgresql_version to be public as in ActiveRecord 5 for seed_fu
# to work. In ActiveRecord 4, it is protected.
# https://github.com/mbleigh/seed-fu/issues/123
class PostgreSQLAdapter
public :postgresql_version
end
module PostgreSQL
module SchemaStatements
# Resets the sequence of a table's primary key to the maximum value.
def reset_pk_sequence!(table, pk = nil, sequence = nil) #:nodoc:
unless pk and sequence
default_pk, default_sequence = pk_and_sequence_for(table)
pk ||= default_pk
sequence ||= default_sequence
end
if @logger && pk && !sequence
@logger.warn "#{table} has primary key #{pk} with no default sequence"
end
if pk && sequence
quoted_sequence = quote_table_name(sequence)
max_pk = select_value("SELECT MAX(#{quote_column_name pk}) FROM #{quote_table_name(table)}")
if max_pk.nil?
if postgresql_version >= 100000
minvalue = select_value("SELECT seqmin FROM pg_sequence WHERE seqrelid = #{quote(quoted_sequence)}::regclass")
else
minvalue = select_value("SELECT min_value FROM #{quoted_sequence}")
end
end
select_value <<-end_sql, 'SCHEMA'
SELECT setval(#{quote(quoted_sequence)}, #{max_pk ? max_pk : minvalue}, #{max_pk ? true : false})
end_sql
end
end
end
end
end
end
# rubocop:enable all
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